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Your Safety is Our Top Priority

Learn what measures we have taken to keep you safe.

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El cáncer de colon se puede prevenir.

Realícese una prueba por su familia. Realícese una prueba por usted.

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Prioritize Yourself for Care

If you’ve met your healthcare deductible, maximize your medical benefits.

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45? Time To Screen For Colon Cancer.

Early detection may save your life.

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How We're Keeping You Safe

Learn what steps we've added to keep you safe

Prevent Colon Cancer

Learn more about colonoscopies.

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About Us

Learn more about our center.

Glendora’s Best GI Doctors

Our gastroenterologists and staff at Glendora Digestive Disease Institute are dedicated to providing quality, affordable care to the community in our quest to lower colon cancer rates and treat an array of digestive diseases, including Crohn’s Disease, irritable bowel syndrome (IBS) and gastroesophageal reflux disease (GERD).

We believe in compassionate medicine, where patients feel reassured and unrushed. We hold ourselves to the highest of standards, as our center is accredited by the Accreditation Association for Ambulatory Health Care (AAAHC).

Our board-certified GI doctors specialize in a myriad of GI procedures, including colonoscopy, flexible sigmoidoscopy and upper endoscopy.

If you are due for a colonoscopy or in need of a GI procedure, don’t put it off any longer. Give us a call today!

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For Your Visit

Glendora Digestive Disease Institute is committed to ensuring that your experience with us is relaxed and worry-free, from consultation through recovery. To assist us, we ask that you read and comply with all guidelines.

We’re pleased to partner with StopColonCancerNow to help boost colon cancer screenings and prevention for residents in Los Angeles County.

Patient Forms

At Glendora Digestive Disease Institute, your time is as valuable to us as it is to you. That’s why we provide online access to a variety of forms that patients may complete before their visit. The following documents will help us expedite the check-in process for your appointment. Please take a moment to download and print the appropriate form(s).

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Insurance and Billing

Glendora Digestive Disease Institute accepts most major insurance. We will bill your insurance carrier for you; however, we cannot tell you what your policy will cover. Since your insurance policy and coverage are between you and your carrier, we urge you to contact them prior to your procedure. You will be responsible for any co-pays and deductibles.

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Meet Our Physicians

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Mumtaz Akram Mumtaz Akram M.D. Sartaj Marty Arora Sartaj Marty Arora M.D. George Ferenczi George Ferenczi M.D. Shahnawaz S. Jaffer Shahnawaz S. Jaffer M.D. Suresht P. Sharma (In Memoriam) Suresht P. Sharma (In Memoriam) M.D. Ankush Sharma Ankush Sharma M.D. Osama A. Sidhom Osama A. Sidhom M.D. Adam J. Snyder Adam J. Snyder M.D. Patrick B. Truong Patrick B. Truong M.D.
4.8/5
4.8 /5
117 Reviews

Google
5.0/5
Sep 26, 2023
Google • Glendora Digestive Disease Institute

The staff were very attentive & professional. The facility was very clean.

Google
5.0/5
Sep 19, 2023
Google • Glendora Digestive Disease Institute

I was treated with great personal care at Glendora digestive and was offered the pre- hydration & feel that it made a big difference! Thank you

Google
5.0/5
Sep 19, 2023
Google • Glendora Digestive Disease Institute

Everyone was thoughtful, nice and profession. Felt wanted and safe at all times. Staff unbelievably nice and courteous

Google
5.0/5
Sep 19, 2023
Google • Glendora Digestive Disease Institute

Thank you to Dr.Osama Sydhom and to all nurses and friendly staff for all there hard work and good treatment

Google
5.0/5
Sep 14, 2023
Google • Glendora Digestive Disease Institute

Great and seemless experience with such professional and caring staff.


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Glendora Digestive Disease Institute
1794 S. Barranca Ave.,
Glendora, CA 91740

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